Container



Patented Aug. 26, 1930 UNITED STATES PATENT OFFICE coNvERsE B.CADWALLADER, F CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN CAN COMPANY, OFNEW YORK, N. Y., A CORPORATION OF NEW JERSEY CONTAINER Application filed.Tune 23,

This invention relates in general to an improved container for thepackaging and dispensing of rolled oats, peanut butter, popcorn, coffeeand a variety of other products. It has more particular reference tosheet metal containers having a frangible seal or fibre drum head at oneend in connection with an outer closure of the interrupted thread type.

An object of my invention is the provision of a drum head constructionwhich isvery simple andlinexpensive to make, which is leak-proof,moisture-proof and insectproof, and which serves as temporary bottomwhen the container is filled through the opposite end.

Another object of my invention isthe provision vof a compound linedfrangiblel seal for such a container which is easily assembled whilebeing supported by an inwardly extending or inverted annular bead formedout of the container body.

Still another ob `ect of my'invention is the provision for such acontainer of a supplementary or outer closure of the interrupted threadtype, which is constructed so as to positively exclude all kinds ofinsect pests, such as weevils which are attracted for instance by rolledoats.

Numerous other objects and advantages of the invention will be apparentas it is better understood from the foliowing description, which, takenin connection with the accomanying drawings, discloses a preferredemodiment thereof.

Referring to the drawings Figure l is an elevation of one form ofcontainer embodying my invention with an outer cap or closure shown indissembled po-' sition;

Fig. 2 is an enlarged vertical section showing the upper parts of thecontainer in fully assembled position, and

Fig. 3 is another enlarged,-fragmentary vertical section showing theposition and shape of the drum head blank, lining compound and containertop before the assembly is completed.

To illustrate a preferred embodiment of my invention. I have shown onthe drawings "1928. serial No. 287,866.

a cylindrical container body 11 of sheet metal having a bottom end 12double seamed or otherwise permanently secured thereto. T t is customaryto fill this type of container through the bottom. hence the bottom end12 is not applied until after the filling of the container has takenplace. l

A short distance below its top edge, the container 11 is provided withan outwardly extending stop bead 13. Just above the stop bead 13, thematerial of the container body is drawn to provide a series of outwardlyyeX- tendingobliquelyarranged beads or interrupted threads 14.

The material-of the container above these interrupted threads 14 isstraight and vertical at 15 and then at a'point of bend 16 it extendsinwardly and upwardly'forming a lslanting wall 17, and then continuingup- 'lyextending or inverted bead 18 and a slanting wall 19. At a pointof bend 20, the material of the annular container wall continuesstraight upwardly to forni another vertical wall part 21, which as shownin Fig. 3 is straight to its very top before a drum head (yet to bedescribed in detail) has been finally assembled in place, and isbentinwardly and downwardly to form a curl 22 terminating into a sharp edge.23, as shown in Fig. 2. when theassembly of the drum head with thecontainer hasbeen completed.

Reference numeral' 24`generally indicates a frangible seal or drum head.It comprises a cup-shaped member of bre, composition or other suitablematerial which may be made 'moisture-proof, grease-proof and leak-proofin any preferred manner. In blank form, it has a flat bottom 25 and avertical flange 2G. The frangible seal 24 may be cut from a web ofmaterial in disc form and the straight containcr top shown in Fig. 3 maythen be used as amold to form the flange 2G as the disc is pushed intothe positionshowii in Fig. 3. lVhen this is done, the bottom 25 of theseal 24 engages and is supported by the top edge eration, the materialof the can body above the vertical wall Q1 is bent to form the curl 22.This curling operation causes that part of the bottom of the seal Q4which extends outwardly from the point of Contact with the top edge ofthe bead 13, and is designated by reference numeral 28, to conform tothe shape of the slanting wall 19, and the flange 9.6' of the seal 24follows the general contour of the curl 22. The sharp edge Q3 of thecurl Q2, when the curl 22 has been completely formed. bites into theseal Q4`and tends to stretch the seal radially .so that its y centralpartis flat and substantially taut.

prises a central In order to make an eXtra tight seal between the drumhead and the container body, lining compound or packing 27 of anysuitable composition may be employed. The pocket formed by the containerparts 19 and 21 lends itself very conveniently as a receptacle for thecompound 27 until part of the latter is distributed by the pressure ofthe curling operation, as shown in Fig, 2. I

Reference numeral 29 designates an improved supplementary outer cap orclosure of the interrupted screw thread type. It compart 30. an annularrecess or channel 31. an outer horizontal part 32 and a depending skirt33. The skirt 33 includes a corrugated or knurled annular part- 34 whichprovides a roughened finger-hold for the easy application and removal ofthe closure. Below .the knurled annular part 34 the material ofthe skirtis drawn to provide inwardly extending obliquely arranged beads `orthreads 35 `which correspond in number and location with the threads 14of thecontainer 11 but are relatively shorter and are adapted to engagethe threads 14 to lock the can in place when the cap is fully applied.

rl`he cap E29 is made with the lowermost anrular part 36 of the skirtbent slightly inwardly as shown-in dotted lines in Fig. 2.- lVhen thecap Q9 is 'only partially applied, that4 is to say, when the threads 14of the body and the cooperating threads 35 of the cap have not beenfully engaged, the cap 29 assumes the position shown in dotted lines inFig. Q. the edge of the part 36 resting lightly against the curved partof the stop bead 13. 'hen, however. the cooperating, interl ruptedthreads of body and cap begin to engage each other, the cap 1s graduallytight-- ened downwardly. the edge of the inwardly bent part 3G is forceddownwardly over the convex surface of the stop bead 13 by the wcdgingaction of the cooperating threads, the bend 36 is slightly straightenedout. the metal of the skirt being somewhat resilient, and the result isa constant annular pressure of the edge of part 36 against the convexsurface of the bead 13 which makes a continnous metal-to-metal contactbetween these parts andprevents any foreign matter from entering thecontainer when the screw cap/"1s fully applied. This is an especiallydesirable condition when the frangible seal has been once broken and thecontents of the container are consumed intermittently.

By foreign matter is meant dust and dirt, and in the case'of a containerfilled with rolled oats or similar food products, insect pests such asgrain weevils, which seem to be attracted to this type of food, arepositively shut out by the construction of my improved container. A

It will be manifest that the container just described provides a drumhead of sturdy construction and one which will permit, as is sometimesdesirable, that the contents placed in the container through the bottom,be com'- pacted under pressure.

It is thought that the invention andv many of its attendant advantageswill be understood from the foregoing description, and it will beapparent that Various changes may be made in the form. c )n structionand arrangement of the parts .vithort departing from the spirit andscope of the invention or sacrificing all of its 'material advantages,the form hereinbefore described being merely a preferred' embodimentthereof.

I claim: y

1. A container comprising, in combination, a body having near its top aninwardly extending bead forming a supporting shoulder, a frangible sealadapted to rest against said shoulder. and a lining material disposedbetween said shoulder and said seal, said body having its top ed frecurled upon said seal to permanently hold the same against saidshoulder.

2. A container comprising, in combination,

a body having near its top aninwardlv eX- ,tendmfr bead forming asupporting shoulder. a frar'gible seal adapted to rest against saidshoulder. and a lining material disposed between said shoulder and saidseal. said body having its top ed ne curled upon said seal topermanently hold the same against said shoulder. a part of said bodybelow said bead being formed with interrupted screw threads. and athreaded cover adapted to engage said threads.

3. A container comprising, in combination, a body having vnear its topan inwardly eX- tending head forming a supporting shoulder, a frangibleseal adapted to rest upon said shoulder, said shoulder and said seal.said shoulder forming a pocket for the lining material, said body havingits top edge curled upon said seal to permanently hold the same againstsaid shoulderl 4. A container comprising, in combination, a body havingnear its top an inwardly eX- tending bead forming a supporting shoulder,a fran'gible seal adapted to rest upon said shoulder, said body havingits top edge curled upon said seal lto permanently hold the same alining material disposedv between.

against said shoulder, and a lining material disposed between saidshoulder and said seal and between said curl and said seal.-

5. A container comprising, in combination, a body having near its top aninwardly extending bead forming a supporting shoulder,

a frangible seal adapted to rest against said shoulder, said bodyhavingits top edge curled upon said seal to permanently hold the same againstsaid shoulder, a part of said body below said bead being formed withinterrupted screw threads, and a threaded cover adapted to engagesaidthreads, said cover having its lowermost annular edge bent inwardlyagainst said body to make a yielding insectv proof contact. therewith.

6. A container comprising, in combination', a body having near its topan inwardly eX- tending bead forming a supporting shoulder, a frangibleseal adapted to rest against said shoulder, said body having its topedge curled Y upon said seal to permanently hold the same against saidshoulder, a part ofsaid body below said bead being formed withinterrupted screw threads and a threaded cover adapted to engage saidthreads.

7 A container comprising, in combination, a body having near its top aninwardly ex tending bead forming a supporting shoulder,

va frangiblel seal adapted to rest against said shoulder, and a liningmaterial disposed between said shoulder and said seal, said body havingits top edge curled upon said seal to permanently hold the same againstsaid lining material. y

CONVERSE B. CADWALLADER.

